Heterogeneous esterification of fatty acids with methanol catalyzed by Lewis acidic organozirconium complexes with Keggin-type mono-aluminum-substituted polyoxotungstates
Heterogeneous esterification of fatty acids with methanol catalyzed by Lewis acidic organozirconium complexes with Keggin-type mono-aluminum-substituted polyoxotungstates
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DOI：
10.1016/j.catcom.2017.03.025
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发表时间：
2017-06
影响因子：
3.7
通讯作者：
C. Kato;Tsukasa Ogasawara;Akari Kondo;Daichi Kato
中科院分区：
文献类型：
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作者：
C. Kato;Tsukasa Ogasawara;Akari Kondo;Daichi Kato
两种路易斯酸性有机锆与 α-Keggin 型单铝取代多钨酸盐的配合物，[(n-C4H9)4N]6[α-PW11Al(OH)O39ZrCp2]2(Cp =η5-C5H5−) (TBA-P-Al-Zr) 和[(n-C4H9)4N]6[α-SiW11Al(OH)2O38ZrCp2]2·2H2O (TBA-Si-Al-Zr)，用作各种脂肪酸与甲醇酯化反应的多相催化剂。对于亚油酸在 80 ± 2 °C 的酯化反应，TBA-P-Al-Zr 在 6 h 后表现出 83% 的转化率，大约是 TBA-Si-Al-Zr 的六倍。TBA-P-Al-Zr 在 80 ± 2 °C 与甲醇的油酸、棕榈酸、肉豆蔻酸和月桂酸的酯化反应中也表现出 69–90% 的转化率。 80 ± 2 °C。
Two Lewis acidic organozirconium complexes with α-Keggin-type mono-aluminum-substituted polyoxotungstates, [(n-C4H9)4N]6[α-PW11Al(OH)O39ZrCp2]2(Cp =η5-C5H5−) (TBA-P-Al-Zr) and [(n-C4H9)4N]6[α-SiW11Al(OH)2O38ZrCp2]2·2H2O (TBA-Si-Al-Zr), were used as heterogeneous catalysts for the esterification of various fatty acids with methanol. For the esterification of linoleic acid at 80 ± 2 °C,TBA-P-Al-Zrexhibited 83% conversion after 6 h, approximately six times higher than that ofTBA-Si-Al-Zr.TBA-P-Al-Zralso exhibited 69–90% conversion for the esterification of oleic acid, palmitic acid, myristic acid, and lauric acid with methanol at 80 ± 2 °C.